CVE-2026-92983Public exploitNetwork attack vector

Service interruption via unreleased scheduler sessions

Published Sep 17, 2026 · Updated Sep 18, 2026

Resource exhaustion in InternLM LMDeploy 0.17.0 and earlier allows remote attackers to interrupt DistServe prefill workers. The proxy passes a user-facing completion response ID to the prefill free-cache path instead of the internal scheduler key, so preserved sessions and sequences remain allocated. Exploitation requires DistServe prefill/decode disaggregation and sustained unauthenticated completion requests, which grow worker memory until the prefill engine is OOM-killed.

CVSS severity8.7
High
EPSS probability0.66%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in InternLM LMDeploy 0.17.0 and earlier allows remote attackers to interrupt DistServe prefill workers. The proxy passes a user-facing completion response ID to the prefill free-cache path instead of the internal scheduler key, so preserved sessions and sequences remain allocated. Exploitation requires DistServe prefill/decode disaggregation and sustained unauthenticated completion requests, which grow worker memory until the prefill engine is OOM-killed.

The record

CVE
CVE-2026-92983
Published
Sep 17, 2026
Updated
Sep 18, 2026
Vendor
InternLM
Product
LMDeploy
Classifications
CWE-772, CAPEC-469, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.17.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

InternLM · LMDeployversion=0 <=0.17.0

Published CVSS scores

8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime
CAPEC-469HTTP DoS
T1499.003Application Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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